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Rare card · Science
Central limit theorem, a Rare card
In probability theory, the central limit theorem states that, under appropriate conditions, the distribution of a normalized version of the sample mean converges to a standard normal distribution.
- Rarity
- Rare
- Domain
- Science
- ATK
- 80
- DEF
- 68
- Power
- 148
- Wikipedia reads a year
- 360,000
Power 148 (ATK + DEF): stronger than 75 % of WikiCards cards.
Central limit theorem quiz: 3 questions
Three questions on the Central limit theorem card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
This holds even if the ______ variables themselves are not normally distributed.
Answer
original. This holds even if the original variables themselves are not normally distributed. From the Central limit theorem article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Assembly language. Assembly language 84 · Central limit theorem 80 · Jerome Krase 75 · Antlia 71 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Central limit theorem. Central limit theorem 360,000 · Antlia 20,000 · Ground-level power supply 16,000 · Graph homomorphism 9,800 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- This holds even if the original variables themselves are not normally distributed.
- There are several versions of the CLT, each applying in the context of different conditions.
- The theorem is a key concept in probability theory because it implies that probabilistic and statistical methods that work for normal distributions can be applicable to many problems involving other types of distributions.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Central limit theorem article was read about 360,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 80 and blocks with 68: each hit it takes is cut by 27 %.
How to get Central limit theorem
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
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Credits
Text : Wikipedia, Central limit theorem (revision), CC BY-SA 4.0. Photo : Mathieu ROUAUD, CC BY-SA 4.0, Wikimedia Commons.
